Blade of Blackpooleby Sirius(Box package)

A fantasy quest centered around a magical sword, Sirius' Blade of
Blackpoole was one of the earliest non-Infocom multiple-sentence
parser adventures. This advantage was offset by a hideous
inventory-management system, which permitted the player to carry no
more than five items at a time. Employs the same interface as Sierra's
and any number of early graphic adventures: Hi-res pics with a four-line
space for text at the bottom.

The box package, a later release, seems the easier to find. At least
Critical Mass, and Gruds in Space exist in this package,
though I can't confirm any other Sirius titles.